Regenerative coke-oven.



C. WILKE.

REGENERATIVE COKE OVENl APPLICATION HLDJUNE11,|914

Patented June 6, 1916 2 SHEETS-SHEET I.

Inventor IT D Wirnesses C. WILKE.

REGENERATIVE COKE OVEN.

APPLxcATIoN man JUNE n. 19H

Patented J une 6, 1916.

2 SHEETS-SHEET 2.

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Wifnesses ma M.

CARL i'V7HKE, BECKLINGHAUSEN, GERMANY, ASSIGNOR T0 CARL STILL, 0F BECKLINGHAUSEN, GERMANY.

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Specification of Letters Patent.

Patented June 6. 191B.

To all whom it may concern? Be it known that CARL WILKE, a subject of the German Emperor, residing at '21 Kaiserwall, Recklinghausen, Germany, have invented certain new and useful Improvements in RegenerativeCoke-Ovens, of which thejfollowing is a specication.v

This invention relatesto re nrative coke ovens ofthe type constructie upon a foundation or sub-structure4 formed of arched passageways, said passageways being of sufcient area as to permit of the passage of the Workmen or attendants in the performance of their work incident to the loperation of said coke ovens, the invention having for yits object to provide means arranged Within these passageways Awhereby the heat radiated from the y upper part of the passageways can be imparted to the air for combustion, and at the same time allow the lower 'part of said passagcwayswhich are used by the attendants, to be retained at a proper and convenient temperature.

In coke ovens of the type'mentioned herein, and which are adapted for the exhaustion of the air stored in the upper part of the foundation arches or passageways, the air is Withdrawn therefrom at several suitable oints and conducted either directly into the interior of the masonry of the ovens, or else into speciall constructed conduits arranged in the foundiiitions for conveying or leading the'same away. In these cases, each Varched passageway forms only a single chamber rom nthe upper part of which the warm air is Withdrawn and conducted away. According to this invention, however, the arched passageways are each sub-divided into an upper and lower chamber by horizontally arranged plates, acting as partitions, which plates form with the upper part of said passageways, channels or conduits for conducting the air to be withdrawn, and said plates or partitions also serving as the ceiling of the lower part of said passageways and providing means of insulation against radiation Vof heat from the upper part of the foundation arhes toward the lower part thereof which is to be used by the Workmen.

Further objects and advantages will ap pear in the following description, it being understood that various changes in form, proportions and minor details of construction may be resorted to Withinthe' scope of the appended claims.

the coking chambers alternating with the adjacent heating fines the saine being constructed and arranged above the arched `passagevvays c of the foundation, which, in the present instance, are supposed to be built parallel to the longitudinal direction of the oven chambers. Beneath the heating dues b the distributing channels d are situated, and beneath the oven chambers a are located. the air distributing channels e. The gas channels d receive heating gas from the two gas mains g which are located in the foundation of the ovens and distribute the gas into the single heating fines through the nozzles f. each of the latter being made accessible from the arched passageways c vby means of a tube h arranged beneath the nozzle in the yvertical axis of the latter. The air distributing channels e are connected with the heating dues '6 by means of passages i, and communicate with the regenerators r by meansof channels lc, the regenerators 1' arranged outside of the oven foundation along the whole length of the battery. Parallel to the regenerators 'r are the collecting channels Z and m, likewise extending the whole length o the battery. f.

All o the arched passageways c are pro vided, according to this invention, with horizontalplates or partitions s, which entend across ,the foundation, and which are providedbintermediate their ends (see Fig. 2) witlnf-fdpenings t through which the' air is drawn." The plates or partitions s are arrangedin close proximity td* the spring of the arches of the passagewaysvv c and divide said passageways into an upper chamber u and a lower chamber adapted for the use of the workmen or attendants. The plates s aire ,preferablyconstructed of non-conducte passageways c. The upper chambers u, formed by the plates a and that portion of the arched passageways above the same, are

Y in direct communication withl the collecting channels l along the whole length of the oven battery by means 'of openings fv. At one end of the battery, the collecting channels Z communicate with channels n which are situated in plan View,ll at a right angle to the said-collecting channels l; and in like manner, the? collecting channels m, which are arranged parallel to the channels l, communicate withchannels o. In the center yof the front wall of the oven battery (see Fig. 3) the channels n and o are placed into communication one with the other, and at this point is arranged a reversing valve q for the regenerators. Beneath this point is arrangeda connection between the channels and a waste gas flue p leading to the chimney.

When operating the coke ovens, the air in the lower accessible part of the arched passageways c, is withdrawn therefrom through the openings t arranged inthe plates or partitions a, and is conveyed through the chambers or conduits u arranged above said plates, whereupon the air is then {conducted through the openings e' into the collecting channels l, From these channels Z the air is then conveyed through the adjoining channels n, arranged along the front wall of the oven battery, to the reversing valve g and through this valve, according to its position, into either one or the other of the two collecting channels m of the regenerators r. As shown in the drawings (see Fig. 3), the reversing valve is so arranged as to conduct the air into the left hand channel m. From the channel m just referred to the air is distributed to the regenerator 1 which is arranged to communicate with said channel m, and is highly heated in this regencrator which has been previously brought to a high temperature during the antecedent period of operation by the hot waste products of combastion passed through it, and is then conducted through the channels into the air distributing channels e arranged beneath the oven chambers, so as to be distributed through the passages z' to the single heating flues of one-half of the heating walls. In these heating walls the combustion of the heating gas simultaneously introduced by the gas distributing channels Z and the nozzles f, takes place, whereupon the products vof combustion are conducted through the upper horizontal passage of each heating wall and conveyed downward into the heating lues of the other half of the heating walls to the distributing channels in communication therewith, and fromthence to the regenerator '1' arranged at the opposite end of the oven, and afterward through the channels m, o and p, and finally to the chimney. After a certain period, the operation is reversed in the usual manner by means of the reversing valve q, and the other regenerator is used for heating the air, while the one first mentioned herein receives the waste products of combustion and is again brought to the requisite temperature.

The particular arrangement herein referred to for exhausting the air from the arched passageways and conducting the same vto the regenerators, involves various important advantages. The improvements insure by simple means a very effective preheating of the air prior to its entrance into the regenerators, while at the same time permanently maintaining a convenient temperature in the lower accessible parts of the arched passageways in the foundation. As

will be readily understood, the arches forming the crowns of the tunnels or passageways are the portions of the foundation or substructure, wherefrom the surplus heat of the ovens is radiated into said tunnels or passageways in a downward direction. By dividing these arches into upper and lower chambers by means of a horizont-al plate or partition as above referred to, and thus forming conduits for conducting the air to be withdrawn, the total volume of air drawn in must first pass along the entire length of the heat radiating surface of the arches rior to its entrance into the regenerators. hus it will be seen that by this means the heat f Y 'from these highly heated surfaces is effectively transferred t the air continuously passing through the; conduits or Achambers arranged above the plates or partitions, and thereby the pre-heating of the air is assured. Furthermore, the horizontal plates or partltions beneath the'arches which can be made of non-conducting material without additional cost, form an effective means of insulattion against radiation of heat from the upper hea't-ed parts of the foundation arches toward the lower accessible parts of the passageway. This advantage is considerably increased by the fact that the air in the'upper conduit or chamber represents, by itself,

a very eti'ective means of insulation. In consequence, a low air temperature is constantly maintained in the lower chambers of the fundation arches or passageways7 which is of the utmost 'importance when considering that these passageways are used to a great extent by the workmen or attendants, and which considerably facilitates their work in attending to the gas main and the burners of each single heating flue. The present invention therefore avoids the useless withdrawal of surplus heat from the foundation masonry of the ovens to the lower accessible chambers adapted for use in regulating the ovens,` and all inqpnveniences associated therewith, and the ovens in a downwar direction is imparted ieat radiated from theto the air to be passed to the regenerators, thus rendering the fullest anount of the sur plus heat useful for the fpvorking ofv the OVBIIS.

Having thus described my invention what I claim and desire to secure by Letters Patent is 1. In combination with regenerative coke ovens constructed upon ar substructure formed of arched passageways, a plate or partition arranged in the upper part of each passageway and formin with the arch structure above it a con uit through which air is conveyed and pre-heated prior to its passage through the regenerators.

2. In combination with regenerative coke ovens constructed 'upon a sub-structure formed of arched passageways, a plate or partition of non-conducting material arranged in the upper part of each passageway for forming a means of insulation against radiation of heat from the upper heated parts of the foundation arches toward the lower parts thereof.

3. In combination with regenerative coke ovens constructed upon a sub-structure formed of arched passageways, a plate or partition arranged in the upper part of each passageway and forming with the arch structure above it a conduit through which air is conveyed and pre-heated prior to its passage through the regenerators, said plates being provided with openings through which the air contained in the spaces below the partition plates is adapted to be drawn.

4. In combination with regenerative ovens, constructed upon a sub-structure formed of arched passageways, means arranged in the upper part of each passageway for prevent ing the direct radiation of heat from the upper part of the passageways t0 the lower part thereof.

In testimony whereof I have afxed my signature in presence of two witnesses.

CARL WILKE.

Witnesses GUsTAv LAMBERTZ, HERMANN Parson. 

